Simulation and analysis of a variable speed permanent magnet synchronous generator with flux weakening control

Miao, Dong-Min; Shen, Jian‐Xin

doi:10.1109/icrera.2012.6477430

Cited by 11 publications

(3 citation statements)

References 17 publications

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“…On the one hand, due to the efficiency of the installed capacity in the car, the power of the engine and the generator is roughly similar when the vehicle needs high-speed bending or rapid acceleration, the sudden increase in the load power of the vehicle may make the electromagnetic torque of the generator as a resistance moment exceed the engine output torque in a short time, and the connecting shaft of the power generation unit is mainly affected by the generator, resulting in the instability of the unit. On the other hand, due to the coupling relationship between the output capacity of the unit and the fuel economy and the speed, the unit needs to switch to different target speed points frequently according to the driving demand [9][10][11][12]. In response to the above problems, scholars have proposed control strategies, such as constant speed QFT (Quantitative Feedback Theory) robust control, fuzzy control, and sliding mode control [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

A Compound Control Strategy for an Ultralight Power Generation System

Wen,

Yuan,

Yuan

et al. 2024

Energies

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Ultralight power generation equipment has high requirements for the power density, continuous operation, and transient stability of the whole machine, and there is a direct conflict between high power density and substantial stability control in the power unit design. In order to meet the power density requirements of ultralight power stations, three main problems need to be solved, namely engine speed oscillation and flameout in the process of load power mutation, matching of the generator and engine torque, and stabilizing the voltage waveform of the AC output end. In this paper, we proposed an exquisite compound control strategy for ultralight power generation systems in engines, generators, and inverters. The effectiveness and practicability of the proposed strategy are verified by both simulation and experiment. The results show that the proposed control strategy can effectively solve the instability problem of the ultralight generator set and improve the stability of the system, where response recovery can be achieved within 0.9 s under the conditions of a total load increase or decrease, and the mismatching degree of the generator following the engine is reduced by 90%. The strategy could also guarantee long-term stable operation with high-quality electrical energy output.

show abstract

Section: Introductionmentioning

confidence: 99%

A Compound Control Strategy for an Ultralight Power Generation System

Wen,

Yuan,

Yuan

et al. 2024

Energies

View full text Add to dashboard Cite

show abstract

“…The generator sets in these power environments do not require frequent speed regulation, and the prime mover can be selected with sufficiently large specifications [8]. The researchers found that for the generator sets that make up the vehicle's integrated power system: On the one hand, due to the efficiency of the installed capacity in the car, the power of the engine and the generator is roughly similar when the vehicle needs high-speed bending or rapid acceleration, the sudden increase in the load power of the vehicle may make the electromagnetic torque of the generator as a resistance moment exceed the engine output torque in a short time, and the connecting shaft of the power generation unit is mainly affected by the generator, resulting in the instability of the unit; On the other hand, due to the coupling relationship between the output capacity of the unit and the fuel economy and the speed, the unit needs to switch to different target speed points frequently according to the driving demand [9][10][11][12]. In response to the above problems, scholars have proposed control strategies such as constant speed QFT robust control, fuzzy control, and sliding mode control [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

An Exquisite Control Strategy for Ultralight Power Generation System

Wen,

Yuan,

Yuan

et al. 2023

Preprint

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Ultralight power generation equipment has high requirements for the power density, continuous operation, and transient stability of the whole machine, and there is a direct conflict between high power density design and substantial stability control in the power unit design. In order to meet the power density requirements of ultra-light power stations, three main problems need to be solved, namely engine speed oscillation and flameout in the process of load power mutation, matching of the generator and engine torque, and stabilizing the voltage waveform of the AC output end. In this paper, we proposed an exquisite control strategy for ultralight power generation systems in engines, generators, and inverters. The effectiveness and practicability of the proposed strategy are verified by both simulation and experiment. The results show that the proposed control strategy can effectively solve the instability problem of the ultralights generator set and improve the stability of the system, where the response recovery can be achieved within 0.9 seconds under the condition of total load increase or decrease, and the mismatching degree of the generator following the engine is reduced by 90%. The strategy could also guarantee long-term stable operation with high-quality electrical energy output.

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“…Therefore, it is necessary to analyze and study the eddy current loss and core loss generated when the motor is operated with multiple degrees of freedom. 5 At the same time, the torque characteristic is also an important performance index of the multi-degree-of-freedom motor. It is necessary to control the smoothness of the torque in each direction of the deflection and to avoid the fluctuation of the torque current to the greatest extent.…”

Section: Introductionmentioning

confidence: 99%

Dynamics analysis and electromagnetic characteristics calculation of permanent magnet 3-degree-of-freedom motor

Liu

2019

Science Progress

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This article proposes a conceptual model of a new type permanent magnet 3-degree-of-freedom motor. Its structure consists of an internal rotation module and a peripheral deflection module. It can be driven independently to achieve high-speed rotation and precise tilting of the motor. The 3-degree-of-freedom movement of the motor in space is achieved by the synchronous operation of the rotation and the deflection. In order to explore the loss problem caused by the temperature rise problem in the actual operation of the motor, the eddy current loss and core loss inside the permanent magnet of the motor are analyzed by theoretical formula and finite element method, respectively. Based on the static magnetic field, the gas flux density of two types of rotor permanent magnets in different coordinate systems is analyzed. The motor’s rotation and deflection torque characteristics are calculated using the principle of virtual displacement method. Using the auxiliary technology of the virtual prototype, according to the actual situation of the motor, the corresponding motion hinges and driving forms are summarized, and the control strategies of rotation, deflection, and rotation and deflection simultaneously are planned. The trajectory of the motor is described by observing the selected points. For the motor from product design to prototype testing and to the final processing assembly, a solid theoretical foundation is laid for the proposed work.

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Simulation and analysis of a variable speed permanent magnet synchronous generator with flux weakening control

Cited by 11 publications

References 17 publications

A Compound Control Strategy for an Ultralight Power Generation System

A Compound Control Strategy for an Ultralight Power Generation System

An Exquisite Control Strategy for Ultralight Power Generation System

Dynamics analysis and electromagnetic characteristics calculation of permanent magnet 3-degree-of-freedom motor

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